Gas-fixture.



PATENTED MAR. 22, 1904.

8. BERNHEIM.

GAS FIXTURE. APPLICATION FILED mm 1. 1903.

N0 MODEL.

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UNITED STATES PATENT OFFICE.

SAMUEL BERNHEIM, 'OF NEW YORK, N.

GAS-FIXTURE.

SPECIFICATION forming part of Letters Patent No. 755,346, dated March22, 1904. l

- Application filed Tune 1, 1903- Serial No. 159,475. (Noimodeh) To allwhom it may concern.-

, Be it known that I, SAMUEL BERNHEIM, a citizen of the United States,and a resident of New York city, in the county of New York and State ofNew York, have invented certain new and useful Improvements inGas-Fixtures, of which the following is a specification.

The subject of the present invention is a novel gas and aircontrollingmeans for chandeliers, brackets, and other similar fixtures,the primary object of the invention being to increase the adaptabilityof the class of articles mentioned for having incandescent or Welsbachmantles used in connection therewith.

With the above and other purposes in view the invention consistsgenerally of a gas-fixture provided with a cock for controlling thesupply of gas to the burner and provision whereby when the gas-cock isopened communication will be established between the gaspassage and theatmosphere, whereby a combustible mixture will be formed which can bedelivered to and consumed at the burner. When the cock is closed tointerrupt the flow of gas to the burner, the air-supply will becorrespondingly cut ofl".

As is well known, in using incandescent mantles, the height andstructural character of the latter are such that the ignition of the gasonly takes place after it has been issuing from the jet-tip for aconsiderable period. The reticulated formation of the mantle results ina cylinder through the fabric of which the gas and air cannot pass, andhence it is not until such cylinder has become filled with aconsiderable body of gas that sufiicient of the latter escapes at thecylinder-top to unite with the The resultant flame communicated to theconsiderable body of gas within the cylinder causes an explosion, whichseriously impairs the durability of the mantle and in many instancesdestroys the same. Another difliculty is that the limited diameter ofthe mantle, together with its contracted upper end, tend to restrict thefree commingling of the air with the gas issuing at the top,

resulting in an imperfect mixture, and there- 7 by preventing perfectcombustion. By my improvements I obviate the objections noted and inaddition attain other important advantages.

There are other important features connected with my invention, which,besides those alluded to, are clearly explained in the subsequentdetailed description.

In the accompanying drawings, forming part of this specification, Figure1 is a vertical sectional view of a gas-chandelier equipped withincandescent mantles and embodying a form of my invention, the gas andair controlling provision being represented as closed.

Fig. 2 is a perspective view showing, on an enlarged scale, a portion ofoneof the arms of the chandelier in an inverted position; theair-admission means being open. Fig. 3 is a cross-section of one of thechandelier-arms, the same being represented on an enlarged scale and theplane of section being that indicated by the broken line 3 3, Fig. 1.Fig. 4 is an enlarged detail view of the key of one of the gas cocks andcertain parts carried thereby.

Similar reference characters are employed to designate correspondingparts in the figures of the drawings wherein they occur.

I have illustrated a form of my invention in connection with agas-chandelier, A referring to the hanger, carrying at its lower end thecoupling B, to which in turn are secured the oppositely-extending armsCD, provided with outer upward bends 0 d, having jets and tips andequipped with incandescent mantles O D.

A portion 6 of the couplings extends for a short distance within theinner end of the contiguous arm and has a short contracted nozzle bhorizontally disposed within its arm. Interposed within each arm is thesocket e of a gas-cock E, the plug e of which, as well as the walls ofthe socket, contain suitable parts, so that uponturn'ing-the plugbymeans of the key 6 a through way is established or interrupted,according to the direction of movement.

As the rest of the construction to be described is duplicated at eitherside of the coupling B a description of the parts at one side willsufiice for an understanding of both.

A short distance from the cock E the arm D is cut away at its under sideto present a liberal opening D the arm being provided withexternally-located longitudinal ribs dd, located adjacent to thelongitudinal edges of the opening and extending beyond the transverseedges thereof for some distance. These ribs engage and retain alongitudinally-sliding plate F, which is curved in cross-section tointimately conform with the bottom of the arm, said plate being of suchdimensions that when moved to a proper position it will'completely coverthe opening in the arm. This plate has integrally at its inner end atransversely-elongated horizontal tongue F, containing a crescent-shapedslot f, which bows in the direction of the plate. Engaged within theslot f is the hook end 9 of a somewhat extended horizontal finger G, thebutt 9 of which is mounted on the key of the adjacent cock to turntherewith but capable of a limited downward movement on said key topermit the end 9 to be disengaged from the tongueslot when desired. Ashort expanding spring 9 on the key, immediately beneath the fingerbutt,serves to normally hold the finger in its highest position.

From the description thus far it will be readily comprehended that whenthe cock is closed the plate F covers the opening D the finger hook goccupying aposition in one of the ends ofthe slot f. Now upon turningthe cock to establish a through way for the passage of the gas thefinger will be laterally swung and its hook g travel toward the centralpart of the slot, the configuration of which will resultin one of thecurved walls of the slot exertingacam action to longitudinally shift theplate and recover its opening, as illustrated in Fig. 2. With the partsthus conditioned an ample volume of air will enter through the opening Dand combine with the gas flowing along the passage in the arm to form areadily ignitible and combustible mixture highly adapted for service inconnection with incandescent mantles. A reverse movement of the key willobviously cut off the gas and stop the air admission.

In case it should be desirable to operate the cock without uncoveringthe air-opening D the finger Gr may be moved down to an extentsuflicient to disengage its hook from the tongue F.

The invention can be embodied in exceedingly simple form and is highlyuseful.

I do not desire to be understood as limiting myself to the particularconstruction and arrangement of parts shown and described, but reservethe right to all modifications that may be fairly considered Within thescope of my invention.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination with a gas-fixture including a hanger and horizontalarm, the latter provided at its outer extremity with a burner, andhaving an intermediately-located longitudinally disposed air-admissionopening, of a cock in said arm contiguous to the opening and having ahorizontal port adapted to be turned parallel with said opening, and avalve controlling said opening and operatively connected with the cock.

2. The combination with a gas-fixture including a hanger and horizontalarm, the latter provided at its outer extremity with a burner, andhaving an intermediately-located longitudinally disposed air-admissionopening, of a cock in said arm contiguous to the opening and having ahorizontal port adapted to be turned parallel with the opening, and avalve controlling said opening and detachably connected with the cock tobe operable thereby.

3. The combination with a gas-fixture including a hanger and horizontalarm, the latter provided at its outer extremity with a burner and havingan intermediately-located longitudinally disposed air-admission opening,of a cock in said arm contiguous to the opening and having a horizontalport adapted to be turned parallel with the said opening, a valvecontrolling the latter, and a springyielding finger carried by the cockand detachably engaging said valve.

4. The combination with a gas-fixture includinga hanger and a horizontalarm, the latter provided at its outer extremity with a burner and havingan intermediately-located longitudinally-disposed air-admission opening,a coupling connecting said arm with the hanger and having a nozzleprojecting into the arm, of a cock in said arm between the nozzle andopening and having a horizontal port adaptedto be turned parallel withthe said opening, and a valve for the latter operatively connected withthe cock.

5. The combination with a gas-fixture including a hanger and horizontalarm, the latter provided at its outer extremity with a burner and havingan intermediately-located lower air-admission opening with guide-ribsexternal thereto, of a cock in said arm contiguous to the opening, acurved plate slidingly guided in said ribs and a connection between theplate and the cock.

6. The combination with a gas-fixture including a hanger and horizontalarm the latter provided at its outer extremity with a burner having anintermediately-located lower air-admission opening with guide-ribsexternal thereto, a curved plate slidingly guided in said ribs, andhavinga slotted portion, acoupling connecting the hanger and afrn andhair York and State of New York, this 28th day ing a nozzle projectingwithin the arm, a of May, A. D. 1903. 4 cock in the arm between thenozzle and open- I ing, and a spring-yielding finger carried by SAMUELBERNHEIM' 5 the cock and engaging the slotted portion of Witnesses:

the plate. CHAS. S. CLAGETT,

Signed at New York, in the county of New M. BENDER.

